22668740738 has 54 divisors (see below), whose sum is σ = 40331486979. Its totient is φ = 9528012648.

The previous prime is 22668740713. The next prime is 22668740767. The reversal of 22668740738 is 83704786622.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11334370369 + 11334370369 = 106463^2 + 106463^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106463.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22668740738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 99862181 + ... + 99862407.

Almost surely, 2^22668740738 is an apocalyptic number.

22668740738 is a deficient number, since it is larger than the sum of its proper divisors (17662746241).

22668740738 is an frugal number, since it uses more digits than its factorization.

22668740738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 22668740738 in words is "twenty-two billion, six hundred sixty-eight million, seven hundred forty thousand, seven hundred thirty-eight".